| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 10.69 | 196408221_ANA_CLE |
| Don Drysdale | LAN | 6.62 | 196408220_CIN_LAN |
| Jim Bunning | PHI | 6.48 | 196408230_PIT_PHI |
| Jim Bouton | NYA | 2.83 | 196408230_NYA_BOS |
| Jim O'Toole | CIN | 2.75 | 196408230_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | -3.39 | 196408230_ATL_HOU |
| Bill Monbouquette | BOS | -3.36 | 196408221_NYA_BOS |
| Dick Donovan | CLE | -1.98 | 196408222_ANA_CLE |
| Orlando Pena | OAK | -1.61 | 196408220_OAK_TEX |
| Bennie Daniels | TEX | -1.33 | 196408231_OAK_TEX |
Based on accumulated WAA for this season up to 1964-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.58 | Dean Chance | 204.3 | ANA |
| +002+ | 9.28 | Sandy Koufax | 223 | LAN |
| +006+ | 7.12 | Jim Bunning | 207.3 | PHI |
| +007+ | 6.65 | Juan Pizarro | 193 | CHA |
| +008+ | 6.59 | Chris Short | 151 | PHI |
| +009+ | 6.25 | Don Drysdale | 242.3 | LAN |
| +022+ | 4.97 | Whitey Ford | 181 | NYA |
| +023+ | 4.9 | Gary Peters | 212.3 | CHA |
| +026+ | 4.62 | Jim O'Toole | 158.3 | CIN |
| +028+ | 4.42 | Juan Marichal | 193.7 | SFN |
| +030+ | 4.36 | Jim Bouton | 217.7 | NYA |
| +034+ | 4.01 | Bob Bruce | 159.3 | HOU |
| +035+ | 3.87 | Joe Horlen | 137 | CHA |
| +040+ | 3.66 | Bobby Bolin | 143.7 | SFN |
| +043+ | 3.36 | Bob Veale | 206.3 | PIT |
| +058+ | 2.86 | Milt Pappas | 175 | BAL |
| +061+ | 2.77 | Fred Newman | 145.7 | ANA |
| +069+ | 2.44 | Robin Roberts | 165 | BAL |
| +073+ | 2.39 | John Buzhardt | 142 | CHA |
| +075+ | 2.37 | Bob Miller | 110.7 | LAN |
| +077+ | 2.32 | Wally Bunker | 151 | BAL |
| +079+ | 2.29 | Steve Ridzik | 101 | TEX |
| +081+ | 2.26 | Gaylord Perry | 134.3 | SFN |
| +088+ | 2.11 | Ron Herbel | 142.7 | SFN |
| +089+ | 1.98 | Joe Sparma | 68.7 | DET |
_